Encyclopedia of Clinical Neuropsychology

2011 Edition
| Editors: Jeffrey S. Kreutzer, John DeLuca, Bruce Caplan

Alternate Test Forms

  • Kyle E. Ferguson
  • Grant L. Iverson
Reference work entry
DOI: https://doi.org/10.1007/978-0-387-79948-3_1170



Alternate test forms are designed to avoid or reduce content- or item-specific practice effects that are associated with repeated administrations of the same neuropsychological test(s) (Benedict & Zgaljardic, 1998). Examination of the manuals for many intellectual and neuropsychological tests illustrate that practice effects are common, especially over brief retest intervals (e.g., days or weeks). Regarding test construction, alternate test forms should include the same number of items, and the items should be of equivalent difficulty. Moreover, the test instructions, time limits, examples, and format should be identical to the original instrument developed during standardization, to reduce measurement error (Jackson, 2009). Of course, measurement error can never be eliminated. For example, content-sampling error and time-sampling error – inherent in all test–retest paradigms – are always concerns in developing alternate test...

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References and Readings

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  12. Sattler, J. M. (2001). Assessment of children: Cognitive applications (4th ed.). San Diego: Jerome M. Sattler.Google Scholar
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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Kyle E. Ferguson
    • 1
  • Grant L. Iverson
    • 2
  1. 1.University of British ColumbiaVancouverCanada
  2. 2.Department of PsychiatryUniversity of British Columbia British Columbia Mental Health & AddictionsVancouverCanada